True,
Good luck! I hope I helped!
        
             
        
        
        
X^2+x-12=0 factors out into (x+4)(x-3) so the answer is: x=-4, x=3
        
             
        
        
        
Hi,
So we have g(x) = 4√(x).  We're looking for g(45).  Think of it like this: whatever number is in the place of x in g(x), just place that number AS x.
Therefore, we have :
g(45) = 4√(45) ⇒ (4) × (√(45)) ⇒ (4)(3√(5)) = 12√(5).
-Hope this helps!
        
             
        
        
        
2(z-10)=-4
2z-20=-4
2z=16
z=8